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150 meters ......
let length of train =x meters
speed of train =(x/15)m/sec
speed of train=(x+100)/25 m/sec
so length of train =150 meter
A 500 yard long train, travelling at 90 mph, enters a tunnel of four and a half miles in length.
How long will elapse between the moment the front of the train enters the tunnel and the moment the end of the train clears the tunnel?
A train running at 25 kmph takes 18 second to pass a platform. Next, it takes 27/2 second to pass a man walking at the rate of 5 kmph in the same direction.
Find the length of the train and that of the platform.
A train travelling at 48 kmph completely crosses another train having half its length and travelling in opposite direction at 42 kmph, in 12 seconds. It also passes a railway platform in 45 seconds.
What is the length of the platform?
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